▎ 摘　　要

NOVELTY - A chain-transfer agent-containing polymer dispersant (I) is new. USE - New chain-transfer agent-containing polymer dispersant is used in manufacture of graphene dispersion (all claimed). ADVANTAGE - The dispersion obtained using the chain-transfer agent-containing polymer dispersant provides film having excellent peelability, and can be manufactured by efficient method. DETAILED DESCRIPTION - A chain-transfer agent-containing polymer dispersant of formula (I) is new. CTA=chain transfer agent; R1,R2=H or 1-4C alkyl; X=5-8C arylamino or 5-8C heteroaryl containing N; Y'=perfluoro-1-4C alkyl acetate; n=10-300; n+m=100-500;and n:m=2:8-7:3. INDEPENDENT CLAIMS are included for the following: (1) preparation of compound (I); and (2) manufacture of graphene dispersion.